/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.order.of.the.error.locations.to.be.checked TOGETHER -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-poker-hand-subst.wvr_bound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 19:44:21,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 19:44:21,824 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 19:44:21,828 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 19:44:21,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 19:44:21,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 19:44:21,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 19:44:21,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 19:44:21,851 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 19:44:21,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 19:44:21,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 19:44:21,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 19:44:21,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 19:44:21,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 19:44:21,856 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 19:44:21,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 19:44:21,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 19:44:21,857 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 19:44:21,857 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 19:44:21,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 19:44:21,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 19:44:21,857 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 19:44:21,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 19:44:21,858 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 19:44:21,859 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 19:44:21,859 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 19:44:21,859 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 19:44:21,859 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 19:44:21,859 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 19:44:21,859 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 19:44:21,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 19:44:21,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 19:44:21,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 19:44:21,861 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 19:44:21,861 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 19:44:21,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 19:44:21,861 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 19:44:21,861 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 19:44:21,861 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 19:44:21,861 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 19:44:21,862 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 19:44:21,862 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 19:44:22,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 19:44:22,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 19:44:22,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 19:44:22,047 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 19:44:22,048 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 19:44:22,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-poker-hand-subst.wvr_bound2.c [2023-08-03 19:44:22,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 19:44:23,030 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 19:44:23,030 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-poker-hand-subst.wvr_bound2.c [2023-08-03 19:44:23,042 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718f29495/9e2f21913cb24d2ca081efee1b0b6bfe/FLAGc7fa4f74d [2023-08-03 19:44:23,052 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718f29495/9e2f21913cb24d2ca081efee1b0b6bfe [2023-08-03 19:44:23,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 19:44:23,055 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 19:44:23,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 19:44:23,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 19:44:23,057 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 19:44:23,058 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 07:44:23" (1/1) ... [2023-08-03 19:44:23,058 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@576fa3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:23, skipping insertion in model container [2023-08-03 19:44:23,058 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 07:44:23" (1/1) ... [2023-08-03 19:44:23,103 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 19:44:23,285 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-poker-hand-subst.wvr_bound2.c[19505,19518] [2023-08-03 19:44:23,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 19:44:23,294 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 19:44:23,357 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-poker-hand-subst.wvr_bound2.c[19505,19518] [2023-08-03 19:44:23,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 19:44:23,369 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 19:44:23,369 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 19:44:23,373 INFO L206 MainTranslator]: Completed translation [2023-08-03 19:44:23,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:23 WrapperNode [2023-08-03 19:44:23,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 19:44:23,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 19:44:23,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 19:44:23,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 19:44:23,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:23" (1/1) ... [2023-08-03 19:44:23,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:23" (1/1) ... [2023-08-03 19:44:23,453 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2413 [2023-08-03 19:44:23,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 19:44:23,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 19:44:23,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 19:44:23,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 19:44:23,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:23" (1/1) ... [2023-08-03 19:44:23,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:23" (1/1) ... [2023-08-03 19:44:23,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:23" (1/1) ... [2023-08-03 19:44:23,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:23" (1/1) ... [2023-08-03 19:44:23,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:23" (1/1) ... [2023-08-03 19:44:23,525 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:23" (1/1) ... [2023-08-03 19:44:23,529 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:23" (1/1) ... [2023-08-03 19:44:23,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:23" (1/1) ... [2023-08-03 19:44:23,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 19:44:23,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 19:44:23,561 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 19:44:23,561 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 19:44:23,561 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:23" (1/1) ... [2023-08-03 19:44:23,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 19:44:23,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:44:23,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-03 19:44:23,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-03 19:44:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 19:44:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 19:44:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 19:44:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-03 19:44:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-03 19:44:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-03 19:44:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-03 19:44:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-03 19:44:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-03 19:44:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-03 19:44:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 19:44:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-03 19:44:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-03 19:44:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-03 19:44:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 19:44:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 19:44:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 19:44:23,629 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-03 19:44:23,780 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 19:44:23,782 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 19:44:25,123 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 19:44:26,713 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 19:44:26,714 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-08-03 19:44:26,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 07:44:26 BoogieIcfgContainer [2023-08-03 19:44:26,716 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 19:44:26,718 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 19:44:26,718 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 19:44:26,720 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 19:44:26,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 07:44:23" (1/3) ... [2023-08-03 19:44:26,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10596fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 07:44:26, skipping insertion in model container [2023-08-03 19:44:26,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:23" (2/3) ... [2023-08-03 19:44:26,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10596fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 07:44:26, skipping insertion in model container [2023-08-03 19:44:26,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 07:44:26" (3/3) ... [2023-08-03 19:44:26,723 INFO L112 eAbstractionObserver]: Analyzing ICFG weaver_chl-poker-hand-subst.wvr_bound2.c [2023-08-03 19:44:26,729 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 19:44:26,735 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 19:44:26,735 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-03 19:44:26,735 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 19:44:27,015 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-08-03 19:44:27,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 687 places, 774 transitions, 1590 flow [2023-08-03 19:44:27,425 INFO L124 PetriNetUnfolderBase]: 200/1422 cut-off events. [2023-08-03 19:44:27,425 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-03 19:44:27,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1483 conditions, 1422 events. 200/1422 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6142 event pairs, 0 based on Foata normal form. 0/1212 useless extension candidates. Maximal degree in co-relation 946. Up to 28 conditions per place. [2023-08-03 19:44:27,436 INFO L82 GeneralOperation]: Start removeDead. Operand has 687 places, 774 transitions, 1590 flow [2023-08-03 19:44:27,446 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 687 places, 774 transitions, 1590 flow [2023-08-03 19:44:27,448 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 19:44:27,453 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 687 places, 774 transitions, 1590 flow [2023-08-03 19:44:27,455 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 687 places, 774 transitions, 1590 flow [2023-08-03 19:44:27,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 687 places, 774 transitions, 1590 flow [2023-08-03 19:44:27,685 INFO L124 PetriNetUnfolderBase]: 200/1422 cut-off events. [2023-08-03 19:44:27,685 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-03 19:44:27,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1483 conditions, 1422 events. 200/1422 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6142 event pairs, 0 based on Foata normal form. 0/1212 useless extension candidates. Maximal degree in co-relation 946. Up to 28 conditions per place. [2023-08-03 19:44:27,723 INFO L119 LiptonReduction]: Number of co-enabled transitions 43560 [2023-08-03 19:45:38,803 INFO L134 LiptonReduction]: Checked pairs total: 52863 [2023-08-03 19:45:38,803 INFO L136 LiptonReduction]: Total number of compositions: 904 [2023-08-03 19:45:38,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 19:45:38,817 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@359f4711, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 19:45:38,817 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-03 19:45:38,851 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 19:45:38,851 INFO L124 PetriNetUnfolderBase]: 24/68 cut-off events. [2023-08-03 19:45:38,851 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 19:45:38,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:45:38,851 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:45:38,852 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:45:38,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:45:38,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1528107116, now seen corresponding path program 1 times [2023-08-03 19:45:38,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:45:38,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315495224] [2023-08-03 19:45:38,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:45:38,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:45:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:45:39,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 19:45:39,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:45:39,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315495224] [2023-08-03 19:45:39,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315495224] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:45:39,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 19:45:39,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 19:45:39,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199865394] [2023-08-03 19:45:39,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:45:39,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 19:45:39,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:45:39,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 19:45:39,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 19:45:39,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 631 out of 1678 [2023-08-03 19:45:39,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 83 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 636.3333333333334) internal successors, (1909), 3 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:45:39,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:45:39,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 631 of 1678 [2023-08-03 19:45:39,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:45:47,611 INFO L124 PetriNetUnfolderBase]: 6115/7851 cut-off events. [2023-08-03 19:45:47,612 INFO L125 PetriNetUnfolderBase]: For 291/291 co-relation queries the response was YES. [2023-08-03 19:45:47,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15811 conditions, 7851 events. 6115/7851 cut-off events. For 291/291 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 28771 event pairs, 2466 based on Foata normal form. 0/3897 useless extension candidates. Maximal degree in co-relation 12842. Up to 7620 conditions per place. [2023-08-03 19:45:47,643 INFO L140 encePairwiseOnDemand]: 1670/1678 looper letters, 73 selfloop transitions, 6 changer transitions 0/85 dead transitions. [2023-08-03 19:45:47,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 85 transitions, 370 flow [2023-08-03 19:45:47,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 19:45:47,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 19:45:47,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1976 transitions. [2023-08-03 19:45:47,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39253079062375845 [2023-08-03 19:45:47,660 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1976 transitions. [2023-08-03 19:45:47,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1976 transitions. [2023-08-03 19:45:47,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:45:47,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1976 transitions. [2023-08-03 19:45:47,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 658.6666666666666) internal successors, (1976), 3 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:45:47,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1678.0) internal successors, (6712), 4 states have internal predecessors, (6712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:45:47,683 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1678.0) internal successors, (6712), 4 states have internal predecessors, (6712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:45:47,684 INFO L175 Difference]: Start difference. First operand has 57 places, 83 transitions, 208 flow. Second operand 3 states and 1976 transitions. [2023-08-03 19:45:47,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 85 transitions, 370 flow [2023-08-03 19:45:47,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 85 transitions, 370 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 19:45:47,692 INFO L231 Difference]: Finished difference. Result has 59 places, 85 transitions, 238 flow [2023-08-03 19:45:47,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1678, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=59, PETRI_TRANSITIONS=85} [2023-08-03 19:45:47,696 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2023-08-03 19:45:47,696 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 85 transitions, 238 flow [2023-08-03 19:45:47,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 636.3333333333334) internal successors, (1909), 3 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:45:47,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:45:47,697 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:45:47,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 19:45:47,698 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:45:47,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:45:47,699 INFO L85 PathProgramCache]: Analyzing trace with hash -590998041, now seen corresponding path program 1 times [2023-08-03 19:45:47,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:45:47,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668807799] [2023-08-03 19:45:47,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:45:47,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:45:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:45:47,876 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-03 19:45:47,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:45:47,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668807799] [2023-08-03 19:45:47,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668807799] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:45:47,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 19:45:47,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-03 19:45:47,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415376240] [2023-08-03 19:45:47,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:45:47,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 19:45:47,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:45:47,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 19:45:47,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 19:45:48,042 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 631 out of 1678 [2023-08-03 19:45:48,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 85 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 637.3333333333334) internal successors, (1912), 3 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:45:48,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:45:48,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 631 of 1678 [2023-08-03 19:45:48,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:45:55,678 INFO L124 PetriNetUnfolderBase]: 6115/7857 cut-off events. [2023-08-03 19:45:55,678 INFO L125 PetriNetUnfolderBase]: For 291/291 co-relation queries the response was YES. [2023-08-03 19:45:55,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15838 conditions, 7857 events. 6115/7857 cut-off events. For 291/291 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 28784 event pairs, 2466 based on Foata normal form. 0/3905 useless extension candidates. Maximal degree in co-relation 15804. Up to 7623 conditions per place. [2023-08-03 19:45:55,702 INFO L140 encePairwiseOnDemand]: 1665/1678 looper letters, 73 selfloop transitions, 12 changer transitions 0/91 dead transitions. [2023-08-03 19:45:55,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 91 transitions, 420 flow [2023-08-03 19:45:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 19:45:55,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 19:45:55,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1981 transitions. [2023-08-03 19:45:55,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39352403655145013 [2023-08-03 19:45:55,707 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1981 transitions. [2023-08-03 19:45:55,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1981 transitions. [2023-08-03 19:45:55,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:45:55,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1981 transitions. [2023-08-03 19:45:55,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:45:55,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1678.0) internal successors, (6712), 4 states have internal predecessors, (6712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:45:55,719 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1678.0) internal successors, (6712), 4 states have internal predecessors, (6712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:45:55,719 INFO L175 Difference]: Start difference. First operand has 59 places, 85 transitions, 238 flow. Second operand 3 states and 1981 transitions. [2023-08-03 19:45:55,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 91 transitions, 420 flow [2023-08-03 19:45:55,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 91 transitions, 414 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 19:45:55,722 INFO L231 Difference]: Finished difference. Result has 61 places, 91 transitions, 294 flow [2023-08-03 19:45:55,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1678, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=61, PETRI_TRANSITIONS=91} [2023-08-03 19:45:55,723 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2023-08-03 19:45:55,723 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 91 transitions, 294 flow [2023-08-03 19:45:55,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 637.3333333333334) internal successors, (1912), 3 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:45:55,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:45:55,724 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:45:55,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-03 19:45:55,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:45:55,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:45:55,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1255835100, now seen corresponding path program 1 times [2023-08-03 19:45:55,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:45:55,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24791511] [2023-08-03 19:45:55,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:45:55,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:45:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:45:55,851 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-03 19:45:55,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:45:55,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24791511] [2023-08-03 19:45:55,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24791511] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:45:55,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004960503] [2023-08-03 19:45:55,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:45:55,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:45:55,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:45:55,855 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 19:45:55,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-03 19:45:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:45:56,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-03 19:45:56,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:45:56,476 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-03 19:45:56,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 19:45:56,498 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-03 19:45:56,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004960503] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 19:45:56,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 19:45:56,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-03 19:45:56,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674362262] [2023-08-03 19:45:56,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 19:45:56,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-03 19:45:56,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:45:56,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-03 19:45:56,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-03 19:45:56,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 607 out of 1678 [2023-08-03 19:45:56,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 91 transitions, 294 flow. Second operand has 8 states, 8 states have (on average 610.875) internal successors, (4887), 8 states have internal predecessors, (4887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:45:56,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:45:56,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 607 of 1678 [2023-08-03 19:45:56,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:46:04,522 INFO L124 PetriNetUnfolderBase]: 6115/7884 cut-off events. [2023-08-03 19:46:04,522 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2023-08-03 19:46:04,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15930 conditions, 7884 events. 6115/7884 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 28811 event pairs, 2466 based on Foata normal form. 9/3945 useless extension candidates. Maximal degree in co-relation 15865. Up to 7620 conditions per place. [2023-08-03 19:46:04,546 INFO L140 encePairwiseOnDemand]: 1653/1678 looper letters, 64 selfloop transitions, 48 changer transitions 0/118 dead transitions. [2023-08-03 19:46:04,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 118 transitions, 602 flow [2023-08-03 19:46:04,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-03 19:46:04,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-03 19:46:04,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 4995 transitions. [2023-08-03 19:46:04,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3720947556615018 [2023-08-03 19:46:04,555 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 4995 transitions. [2023-08-03 19:46:04,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 4995 transitions. [2023-08-03 19:46:04,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:46:04,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 4995 transitions. [2023-08-03 19:46:04,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 624.375) internal successors, (4995), 8 states have internal predecessors, (4995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:04,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1678.0) internal successors, (15102), 9 states have internal predecessors, (15102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:04,579 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1678.0) internal successors, (15102), 9 states have internal predecessors, (15102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:04,579 INFO L175 Difference]: Start difference. First operand has 61 places, 91 transitions, 294 flow. Second operand 8 states and 4995 transitions. [2023-08-03 19:46:04,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 118 transitions, 602 flow [2023-08-03 19:46:04,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 118 transitions, 590 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 19:46:04,583 INFO L231 Difference]: Finished difference. Result has 68 places, 118 transitions, 512 flow [2023-08-03 19:46:04,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1678, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=512, PETRI_PLACES=68, PETRI_TRANSITIONS=118} [2023-08-03 19:46:04,583 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 11 predicate places. [2023-08-03 19:46:04,583 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 118 transitions, 512 flow [2023-08-03 19:46:04,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 610.875) internal successors, (4887), 8 states have internal predecessors, (4887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:04,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:46:04,585 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:46:04,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-03 19:46:04,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:46:04,792 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:46:04,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:46:04,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1906916212, now seen corresponding path program 1 times [2023-08-03 19:46:04,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:46:04,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316077665] [2023-08-03 19:46:04,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:46:04,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:46:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:46:05,100 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-08-03 19:46:05,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:46:05,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316077665] [2023-08-03 19:46:05,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316077665] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:46:05,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609779392] [2023-08-03 19:46:05,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:46:05,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:46:05,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:46:05,103 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 19:46:05,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-03 19:46:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:46:05,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-03 19:46:05,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:46:05,868 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-08-03 19:46:05,868 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 19:46:05,921 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-08-03 19:46:05,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609779392] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 19:46:05,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 19:46:05,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-03 19:46:05,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501315397] [2023-08-03 19:46:05,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 19:46:05,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-03 19:46:05,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:46:05,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-03 19:46:05,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-08-03 19:46:06,802 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 607 out of 1678 [2023-08-03 19:46:06,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 118 transitions, 512 flow. Second operand has 17 states, 17 states have (on average 609.5294117647059) internal successors, (10362), 17 states have internal predecessors, (10362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:06,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:46:06,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 607 of 1678 [2023-08-03 19:46:06,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:46:14,587 INFO L124 PetriNetUnfolderBase]: 6115/7902 cut-off events. [2023-08-03 19:46:14,587 INFO L125 PetriNetUnfolderBase]: For 291/291 co-relation queries the response was YES. [2023-08-03 19:46:14,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16067 conditions, 7902 events. 6115/7902 cut-off events. For 291/291 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 28989 event pairs, 2466 based on Foata normal form. 11/3965 useless extension candidates. Maximal degree in co-relation 15967. Up to 7620 conditions per place. [2023-08-03 19:46:14,606 INFO L140 encePairwiseOnDemand]: 1653/1678 looper letters, 64 selfloop transitions, 66 changer transitions 0/136 dead transitions. [2023-08-03 19:46:14,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 136 transitions, 874 flow [2023-08-03 19:46:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-03 19:46:14,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-03 19:46:14,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 9860 transitions. [2023-08-03 19:46:14,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3672526817640048 [2023-08-03 19:46:14,623 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 9860 transitions. [2023-08-03 19:46:14,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 9860 transitions. [2023-08-03 19:46:14,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:46:14,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 9860 transitions. [2023-08-03 19:46:14,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 616.25) internal successors, (9860), 16 states have internal predecessors, (9860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:14,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 1678.0) internal successors, (28526), 17 states have internal predecessors, (28526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:14,661 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 1678.0) internal successors, (28526), 17 states have internal predecessors, (28526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:14,661 INFO L175 Difference]: Start difference. First operand has 68 places, 118 transitions, 512 flow. Second operand 16 states and 9860 transitions. [2023-08-03 19:46:14,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 136 transitions, 874 flow [2023-08-03 19:46:14,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 136 transitions, 818 flow, removed 22 selfloop flow, removed 2 redundant places. [2023-08-03 19:46:14,665 INFO L231 Difference]: Finished difference. Result has 85 places, 136 transitions, 754 flow [2023-08-03 19:46:14,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1678, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=754, PETRI_PLACES=85, PETRI_TRANSITIONS=136} [2023-08-03 19:46:14,666 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 28 predicate places. [2023-08-03 19:46:14,666 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 136 transitions, 754 flow [2023-08-03 19:46:14,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 609.5294117647059) internal successors, (10362), 17 states have internal predecessors, (10362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:14,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:46:14,668 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:46:14,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-03 19:46:14,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-03 19:46:14,879 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:46:14,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:46:14,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1062760595, now seen corresponding path program 2 times [2023-08-03 19:46:14,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:46:14,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473861604] [2023-08-03 19:46:14,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:46:14,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:46:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:46:15,198 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-08-03 19:46:15,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:46:15,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473861604] [2023-08-03 19:46:15,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473861604] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:46:15,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126580239] [2023-08-03 19:46:15,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-03 19:46:15,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:46:15,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:46:15,200 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 19:46:15,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-03 19:46:15,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-03 19:46:15,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-03 19:46:15,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-03 19:46:15,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:46:15,983 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-08-03 19:46:15,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 19:46:16,039 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-08-03 19:46:16,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126580239] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 19:46:16,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 19:46:16,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2023-08-03 19:46:16,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894660514] [2023-08-03 19:46:16,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 19:46:16,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-08-03 19:46:16,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:46:16,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-08-03 19:46:16,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=200, Unknown=0, NotChecked=0, Total=380 [2023-08-03 19:46:17,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 607 out of 1678 [2023-08-03 19:46:17,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 136 transitions, 754 flow. Second operand has 20 states, 20 states have (on average 609.3) internal successors, (12186), 20 states have internal predecessors, (12186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:17,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:46:17,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 607 of 1678 [2023-08-03 19:46:17,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:46:24,965 INFO L124 PetriNetUnfolderBase]: 6115/7923 cut-off events. [2023-08-03 19:46:24,965 INFO L125 PetriNetUnfolderBase]: For 301/301 co-relation queries the response was YES. [2023-08-03 19:46:24,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16225 conditions, 7923 events. 6115/7923 cut-off events. For 301/301 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 28881 event pairs, 2466 based on Foata normal form. 21/4002 useless extension candidates. Maximal degree in co-relation 16122. Up to 7620 conditions per place. [2023-08-03 19:46:24,987 INFO L140 encePairwiseOnDemand]: 1654/1678 looper letters, 64 selfloop transitions, 87 changer transitions 0/157 dead transitions. [2023-08-03 19:46:24,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 157 transitions, 1182 flow [2023-08-03 19:46:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-03 19:46:24,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-03 19:46:24,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 8670 transitions. [2023-08-03 19:46:25,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3690618082751575 [2023-08-03 19:46:25,001 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 8670 transitions. [2023-08-03 19:46:25,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 8670 transitions. [2023-08-03 19:46:25,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:46:25,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 8670 transitions. [2023-08-03 19:46:25,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 619.2857142857143) internal successors, (8670), 14 states have internal predecessors, (8670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:25,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 1678.0) internal successors, (25170), 15 states have internal predecessors, (25170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:25,036 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 1678.0) internal successors, (25170), 15 states have internal predecessors, (25170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:25,036 INFO L175 Difference]: Start difference. First operand has 85 places, 136 transitions, 754 flow. Second operand 14 states and 8670 transitions. [2023-08-03 19:46:25,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 157 transitions, 1182 flow [2023-08-03 19:46:25,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 157 transitions, 1038 flow, removed 30 selfloop flow, removed 7 redundant places. [2023-08-03 19:46:25,040 INFO L231 Difference]: Finished difference. Result has 91 places, 157 transitions, 916 flow [2023-08-03 19:46:25,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1678, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=916, PETRI_PLACES=91, PETRI_TRANSITIONS=157} [2023-08-03 19:46:25,041 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 34 predicate places. [2023-08-03 19:46:25,041 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 157 transitions, 916 flow [2023-08-03 19:46:25,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 609.3) internal successors, (12186), 20 states have internal predecessors, (12186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:25,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:46:25,044 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 12, 12, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:46:25,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-03 19:46:25,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:46:25,255 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:46:25,255 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:46:25,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1746239847, now seen corresponding path program 3 times [2023-08-03 19:46:25,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:46:25,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461077527] [2023-08-03 19:46:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:46:25,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:46:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:46:25,808 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2023-08-03 19:46:25,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:46:25,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461077527] [2023-08-03 19:46:25,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461077527] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:46:25,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117337558] [2023-08-03 19:46:25,809 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-03 19:46:25,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:46:25,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:46:25,810 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 19:46:25,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-03 19:46:51,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-08-03 19:46:51,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-03 19:46:51,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 16 conjunts are in the unsatisfiable core [2023-08-03 19:46:51,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:46:51,831 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2023-08-03 19:46:51,831 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 19:46:51,945 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2023-08-03 19:46:51,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117337558] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 19:46:51,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 19:46:51,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 29 [2023-08-03 19:46:51,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458367197] [2023-08-03 19:46:51,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 19:46:51,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-08-03 19:46:51,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:46:51,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-08-03 19:46:51,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=484, Unknown=0, NotChecked=0, Total=812 [2023-08-03 19:46:53,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 607 out of 1678 [2023-08-03 19:46:53,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 157 transitions, 916 flow. Second operand has 29 states, 29 states have (on average 609.448275862069) internal successors, (17674), 29 states have internal predecessors, (17674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:53,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:46:53,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 607 of 1678 [2023-08-03 19:46:53,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:47:01,047 INFO L124 PetriNetUnfolderBase]: 6115/7926 cut-off events. [2023-08-03 19:47:01,048 INFO L125 PetriNetUnfolderBase]: For 304/304 co-relation queries the response was YES. [2023-08-03 19:47:01,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16259 conditions, 7926 events. 6115/7926 cut-off events. For 304/304 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 28864 event pairs, 2466 based on Foata normal form. 3/3987 useless extension candidates. Maximal degree in co-relation 16152. Up to 7620 conditions per place. [2023-08-03 19:47:01,068 INFO L140 encePairwiseOnDemand]: 1654/1678 looper letters, 64 selfloop transitions, 90 changer transitions 0/160 dead transitions. [2023-08-03 19:47:01,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 160 transitions, 1248 flow [2023-08-03 19:47:01,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-03 19:47:01,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-03 19:47:01,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 12297 transitions. [2023-08-03 19:47:01,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36641835518474375 [2023-08-03 19:47:01,083 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 12297 transitions. [2023-08-03 19:47:01,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 12297 transitions. [2023-08-03 19:47:01,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:47:01,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 12297 transitions. [2023-08-03 19:47:01,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 614.85) internal successors, (12297), 20 states have internal predecessors, (12297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:47:01,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 1678.0) internal successors, (35238), 21 states have internal predecessors, (35238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:47:01,118 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 1678.0) internal successors, (35238), 21 states have internal predecessors, (35238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:47:01,118 INFO L175 Difference]: Start difference. First operand has 91 places, 157 transitions, 916 flow. Second operand 20 states and 12297 transitions. [2023-08-03 19:47:01,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 160 transitions, 1248 flow [2023-08-03 19:47:01,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 160 transitions, 1140 flow, removed 36 selfloop flow, removed 6 redundant places. [2023-08-03 19:47:01,123 INFO L231 Difference]: Finished difference. Result has 105 places, 160 transitions, 1024 flow [2023-08-03 19:47:01,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1678, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1024, PETRI_PLACES=105, PETRI_TRANSITIONS=160} [2023-08-03 19:47:01,124 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 48 predicate places. [2023-08-03 19:47:01,124 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 160 transitions, 1024 flow [2023-08-03 19:47:01,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 609.448275862069) internal successors, (17674), 29 states have internal predecessors, (17674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:47:01,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:47:01,126 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:47:01,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-03 19:47:01,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:47:01,345 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:47:01,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:47:01,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1263698579, now seen corresponding path program 4 times [2023-08-03 19:47:01,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:47:01,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180501609] [2023-08-03 19:47:01,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:47:01,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:47:01,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 19:47:01,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 19:47:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 19:47:01,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 19:47:01,923 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 19:47:01,923 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-08-03 19:47:01,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-08-03 19:47:01,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-03 19:47:01,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-08-03 19:47:01,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-03 19:47:01,927 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2023-08-03 19:47:01,929 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 19:47:01,929 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 19:47:02,269 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-08-03 19:47:02,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 831 places, 951 transitions, 1992 flow [2023-08-03 19:47:03,528 INFO L124 PetriNetUnfolderBase]: 1142/5766 cut-off events. [2023-08-03 19:47:03,529 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2023-08-03 19:47:03,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6440 conditions, 5766 events. 1142/5766 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 46828 event pairs, 22 based on Foata normal form. 0/4868 useless extension candidates. Maximal degree in co-relation 3678. Up to 192 conditions per place. [2023-08-03 19:47:03,662 INFO L82 GeneralOperation]: Start removeDead. Operand has 831 places, 951 transitions, 1992 flow [2023-08-03 19:47:03,715 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 831 places, 951 transitions, 1992 flow [2023-08-03 19:47:03,715 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 19:47:03,715 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 831 places, 951 transitions, 1992 flow [2023-08-03 19:47:03,716 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 831 places, 951 transitions, 1992 flow [2023-08-03 19:47:03,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 831 places, 951 transitions, 1992 flow [2023-08-03 19:47:05,008 INFO L124 PetriNetUnfolderBase]: 1142/5766 cut-off events. [2023-08-03 19:47:05,008 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2023-08-03 19:47:05,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6440 conditions, 5766 events. 1142/5766 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 46828 event pairs, 22 based on Foata normal form. 0/4868 useless extension candidates. Maximal degree in co-relation 3678. Up to 192 conditions per place. [2023-08-03 19:47:05,432 INFO L119 LiptonReduction]: Number of co-enabled transitions 148500 [2023-08-03 19:49:12,262 INFO L134 LiptonReduction]: Checked pairs total: 191154 [2023-08-03 19:49:12,262 INFO L136 LiptonReduction]: Total number of compositions: 1105 [2023-08-03 19:49:12,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 19:49:12,264 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@359f4711, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 19:49:12,264 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-03 19:49:12,291 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 19:49:12,291 INFO L124 PetriNetUnfolderBase]: 24/67 cut-off events. [2023-08-03 19:49:12,291 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-03 19:49:12,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:49:12,291 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:49:12,292 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:49:12,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:49:12,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1382267803, now seen corresponding path program 1 times [2023-08-03 19:49:12,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:49:12,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717781514] [2023-08-03 19:49:12,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:49:12,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:49:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:49:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 19:49:12,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:49:12,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717781514] [2023-08-03 19:49:12,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717781514] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:49:12,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 19:49:12,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 19:49:12,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553923610] [2023-08-03 19:49:12,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:49:12,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 19:49:12,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:49:12,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 19:49:12,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 19:49:12,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 757 out of 2056 [2023-08-03 19:49:12,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 119 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 763.3333333333334) internal successors, (2290), 3 states have internal predecessors, (2290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:49:12,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:49:12,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 757 of 2056 [2023-08-03 19:49:12,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-08-03 19:57:35,998 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-03 19:57:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 19:57:36,823 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-08-03 19:57:36,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-03 19:57:36,823 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (3states, 757/2056 universal loopers) in iteration 1,while PetriNetUnfolder was constructing finite prefix that currently has 1000095 conditions, 494573 events (433084/494572 cut-off events. For 30069/30069 co-relation queries the response was YES. Maximal size of possible extension queue 14926. Compared 1980799 event pairs, 202617 based on Foata normal form. 0/236136 useless extension candidates. Maximal degree in co-relation 415997. Up to 489083 conditions per place.). [2023-08-03 19:57:36,823 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-03 19:57:36,823 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-03 19:57:36,824 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-08-03 19:57:36,824 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-03 19:57:36,825 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-03 19:57:36,825 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 19:57:36,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 07:57:36 BasicIcfg [2023-08-03 19:57:36,827 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 19:57:36,828 INFO L158 Benchmark]: Toolchain (without parser) took 793773.19ms. Allocated memory was 541.1MB in the beginning and 7.8GB in the end (delta: 7.3GB). Free memory was 501.6MB in the beginning and 2.2GB in the end (delta: -1.7GB). Peak memory consumption was 7.3GB. Max. memory is 16.0GB. [2023-08-03 19:57:36,828 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 371.2MB. Free memory is still 322.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 19:57:36,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.15ms. Allocated memory is still 541.1MB. Free memory was 501.1MB in the beginning and 475.5MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-03 19:57:36,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.54ms. Allocated memory is still 541.1MB. Free memory was 475.5MB in the beginning and 463.7MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-03 19:57:36,828 INFO L158 Benchmark]: Boogie Preprocessor took 106.04ms. Allocated memory is still 541.1MB. Free memory was 463.7MB in the beginning and 453.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-03 19:57:36,828 INFO L158 Benchmark]: RCFGBuilder took 3155.91ms. Allocated memory was 541.1MB in the beginning and 855.6MB in the end (delta: 314.6MB). Free memory was 452.8MB in the beginning and 655.3MB in the end (delta: -202.5MB). Peak memory consumption was 236.5MB. Max. memory is 16.0GB. [2023-08-03 19:57:36,829 INFO L158 Benchmark]: TraceAbstraction took 790109.37ms. Allocated memory was 855.6MB in the beginning and 7.8GB in the end (delta: 7.0GB). Free memory was 654.2MB in the beginning and 2.2GB in the end (delta: -1.6GB). Peak memory consumption was 7.1GB. Max. memory is 16.0GB. [2023-08-03 19:57:36,830 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 371.2MB. Free memory is still 322.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 318.15ms. Allocated memory is still 541.1MB. Free memory was 501.1MB in the beginning and 475.5MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 79.54ms. Allocated memory is still 541.1MB. Free memory was 475.5MB in the beginning and 463.7MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Preprocessor took 106.04ms. Allocated memory is still 541.1MB. Free memory was 463.7MB in the beginning and 453.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * RCFGBuilder took 3155.91ms. Allocated memory was 541.1MB in the beginning and 855.6MB in the end (delta: 314.6MB). Free memory was 452.8MB in the beginning and 655.3MB in the end (delta: -202.5MB). Peak memory consumption was 236.5MB. Max. memory is 16.0GB. * TraceAbstraction took 790109.37ms. Allocated memory was 855.6MB in the beginning and 7.8GB in the end (delta: 7.0GB). Free memory was 654.2MB in the beginning and 2.2GB in the end (delta: -1.6GB). Peak memory consumption was 7.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 71.3s, 687 PlacesBefore, 57 PlacesAfterwards, 774 TransitionsBefore, 83 TransitionsAfterwards, 43560 CoEnabledTransitionPairs, 8 FixpointIterations, 458 TrivialSequentialCompositions, 209 ConcurrentSequentialCompositions, 113 TrivialYvCompositions, 63 ConcurrentYvCompositions, 61 ChoiceCompositions, 904 TotalNumberOfCompositions, 52863 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 47422, independent: 47324, independent conditional: 0, independent unconditional: 47324, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 23703, independent: 23644, independent conditional: 0, independent unconditional: 23644, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 47422, independent: 23680, independent conditional: 0, independent unconditional: 23680, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 23703, unknown conditional: 0, unknown unconditional: 23703] , Statistics on independence cache: Total cache size (in pairs): 270, Positive cache size: 267, Positive conditional cache size: 0, Positive unconditional cache size: 267, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 128.5s, 831 PlacesBefore, 78 PlacesAfterwards, 951 TransitionsBefore, 119 TransitionsAfterwards, 148500 CoEnabledTransitionPairs, 9 FixpointIterations, 451 TrivialSequentialCompositions, 366 ConcurrentSequentialCompositions, 106 TrivialYvCompositions, 103 ConcurrentYvCompositions, 79 ChoiceCompositions, 1105 TotalNumberOfCompositions, 191154 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 169434, independent: 169267, independent conditional: 0, independent unconditional: 169267, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 76980, independent: 76887, independent conditional: 0, independent unconditional: 76887, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 169434, independent: 92380, independent conditional: 0, independent unconditional: 92380, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 76980, unknown conditional: 0, unknown unconditional: 76980] , Statistics on independence cache: Total cache size (in pairs): 958, Positive cache size: 955, Positive conditional cache size: 0, Positive unconditional cache size: 955, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 344]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (3states, 757/2056 universal loopers) in iteration 1,while PetriNetUnfolder was constructing finite prefix that currently has 1000095 conditions, 494573 events (433084/494572 cut-off events. For 30069/30069 co-relation queries the response was YES. Maximal size of possible extension queue 14926. Compared 1980799 event pairs, 202617 based on Foata normal form. 0/236136 useless extension candidates. Maximal degree in co-relation 415997. Up to 489083 conditions per place.). - TimeoutResultAtElement [Line: 338]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (3states, 757/2056 universal loopers) in iteration 1,while PetriNetUnfolder was constructing finite prefix that currently has 1000095 conditions, 494573 events (433084/494572 cut-off events. For 30069/30069 co-relation queries the response was YES. Maximal size of possible extension queue 14926. Compared 1980799 event pairs, 202617 based on Foata normal form. 0/236136 useless extension candidates. Maximal degree in co-relation 415997. Up to 489083 conditions per place.). - TimeoutResultAtElement [Line: 337]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (3states, 757/2056 universal loopers) in iteration 1,while PetriNetUnfolder was constructing finite prefix that currently has 1000095 conditions, 494573 events (433084/494572 cut-off events. For 30069/30069 co-relation queries the response was YES. Maximal size of possible extension queue 14926. Compared 1980799 event pairs, 202617 based on Foata normal form. 0/236136 useless extension candidates. Maximal degree in co-relation 415997. Up to 489083 conditions per place.). - TimeoutResultAtElement [Line: 336]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (3states, 757/2056 universal loopers) in iteration 1,while PetriNetUnfolder was constructing finite prefix that currently has 1000095 conditions, 494573 events (433084/494572 cut-off events. For 30069/30069 co-relation queries the response was YES. Maximal size of possible extension queue 14926. Compared 1980799 event pairs, 202617 based on Foata normal form. 0/236136 useless extension candidates. Maximal degree in co-relation 415997. Up to 489083 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 819 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 154.9s, OverallIterations: 7, TraceHistogramMax: 13, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 51.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 71.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5796 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4644 mSDsluCounter, 288 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 672 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10939 IncrementalHoareTripleChecker+Invalid, 11611 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 672 mSolverCounterUnsat, 288 mSDtfsCounter, 10939 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 521 GetRequests, 441 SyntacticMatches, 12 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1024occurred in iteration=6, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 25.9s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 627 NumberOfCodeBlocks, 627 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 763 ConstructedInterpolants, 0 QuantifiedInterpolants, 1151 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3602 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 1447/1759 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 10 procedures, 957 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 634.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 504.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 130.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 300 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 407 IncrementalHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 12 mSDtfsCounter, 407 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=328occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown